diff options
Diffstat (limited to 'src/mbgl/shaders/hillshade.cpp')
| -rw-r--r-- | src/mbgl/shaders/hillshade.cpp | 251 |
1 files changed, 182 insertions, 69 deletions
diff --git a/src/mbgl/shaders/hillshade.cpp b/src/mbgl/shaders/hillshade.cpp index 4083faa4b4..1238cf812d 100644 --- a/src/mbgl/shaders/hillshade.cpp +++ b/src/mbgl/shaders/hillshade.cpp @@ -1,80 +1,193 @@ // NOTE: DO NOT CHANGE THIS FILE. IT IS AUTOMATICALLY GENERATED. #include <mbgl/shaders/hillshade.hpp> +#include <mbgl/util/compression.hpp> + +#include <cstdint> namespace mbgl { namespace shaders { const char* hillshade::name = "hillshade"; -const char* hillshade::vertexSource = R"MBGL_SHADER( -uniform mat4 u_matrix; - -attribute vec2 a_pos; -attribute vec2 a_texture_pos; - -varying vec2 v_pos; - -void main() { - gl_Position = u_matrix * vec4(a_pos, 0, 1); - v_pos = a_texture_pos / 8192.0; -} - -)MBGL_SHADER"; -const char* hillshade::fragmentSource = R"MBGL_SHADER( -uniform sampler2D u_image; -varying vec2 v_pos; - -uniform vec2 u_latrange; -uniform vec2 u_light; -uniform vec4 u_shadow; -uniform vec4 u_highlight; -uniform vec4 u_accent; - -#define PI 3.141592653589793 - -void main() { - vec4 pixel = texture2D(u_image, v_pos); - - vec2 deriv = ((pixel.rg * 2.0) - 1.0); - - // We divide the slope by a scale factor based on the cosin of the pixel's approximate latitude - // to account for mercator projection distortion. see #4807 for details - float scaleFactor = cos(radians((u_latrange[0] - u_latrange[1]) * (1.0 - v_pos.y) + u_latrange[1])); - // We also multiply the slope by an arbitrary z-factor of 1.25 - float slope = atan(1.25 * length(deriv) / scaleFactor); - float aspect = deriv.x != 0.0 ? atan(deriv.y, -deriv.x) : PI / 2.0 * (deriv.y > 0.0 ? 1.0 : -1.0); - - float intensity = u_light.x; - // We add PI to make this property match the global light object, which adds PI/2 to the light's azimuthal - // position property to account for 0deg corresponding to north/the top of the viewport in the style spec - // and the original shader was written to accept (-illuminationDirection - 90) as the azimuthal. - float azimuth = u_light.y + PI; - - // We scale the slope exponentially based on intensity, using a calculation similar to - // the exponential interpolation function in the style spec: - // https://github.com/mapbox/mapbox-gl-js/blob/master/src/style-spec/expression/definitions/interpolate.js#L217-L228 - // so that higher intensity values create more opaque hillshading. - float base = 1.875 - intensity * 1.75; - float maxValue = 0.5 * PI; - float scaledSlope = intensity != 0.5 ? ((pow(base, slope) - 1.0) / (pow(base, maxValue) - 1.0)) * maxValue : slope; - - // The accent color is calculated with the cosine of the slope while the shade color is calculated with the sine - // so that the accent color's rate of change eases in while the shade color's eases out. - float accent = cos(scaledSlope); - // We multiply both the accent and shade color by a clamped intensity value - // so that intensities >= 0.5 do not additionally affect the color values - // while intensity values < 0.5 make the overall color more transparent. - vec4 accent_color = (1.0 - accent) * u_accent * clamp(intensity * 2.0, 0.0, 1.0); - float shade = abs(mod((aspect + azimuth) / PI + 0.5, 2.0) - 1.0); - vec4 shade_color = mix(u_shadow, u_highlight, shade) * sin(scaledSlope) * clamp(intensity * 2.0, 0.0, 1.0); - gl_FragColor = accent_color * (1.0 - shade_color.a) + shade_color; - -#ifdef OVERDRAW_INSPECTOR - gl_FragColor = vec4(1.0); -#endif -} - -)MBGL_SHADER"; +const char* hillshade::vertexSource = [] () { + static const uint8_t compressed[] = { + 0x78, 0xda, 0x65, 0x8d, 0xc1, 0x0a, 0xc2, 0x30, + 0x10, 0x44, 0xef, 0xfb, 0x15, 0x73, 0x6c, 0xa5, + 0x68, 0x5b, 0x7a, 0x50, 0x82, 0xff, 0xe0, 0x1f, + 0x94, 0xa8, 0xb1, 0x2c, 0xd8, 0x44, 0xd2, 0x4d, + 0xa8, 0x88, 0xff, 0x6e, 0x4c, 0x51, 0x10, 0xf7, + 0xb2, 0xcb, 0xcc, 0xec, 0xbc, 0x60, 0xf9, 0xe2, + 0xfc, 0x88, 0x51, 0x4b, 0x87, 0xd0, 0xa7, 0xe5, + 0x79, 0x56, 0x44, 0x5a, 0xd2, 0x71, 0x0c, 0x62, + 0x10, 0xcd, 0xa9, 0x85, 0xee, 0x6f, 0x6e, 0x52, + 0xff, 0xaa, 0x98, 0x59, 0x82, 0x37, 0x8b, 0x4b, + 0x51, 0xfb, 0x3b, 0xdb, 0x61, 0x31, 0xe3, 0x47, + 0x74, 0x7c, 0x4e, 0xf5, 0x6c, 0x8b, 0x12, 0x0f, + 0x42, 0x9a, 0xe1, 0xda, 0x1f, 0xdc, 0xc4, 0xc2, + 0xce, 0x62, 0xff, 0x85, 0x62, 0xf5, 0xfe, 0xeb, + 0x8a, 0x8c, 0xaa, 0x50, 0x57, 0x68, 0x4a, 0x95, + 0xf3, 0xb9, 0x29, 0x25, 0x7f, 0x70, 0xd8, 0x60, + 0xdb, 0xec, 0xda, 0x75, 0xad, 0xe8, 0x49, 0x2f, + 0x97, 0x4d, 0x40, 0xaf + }; + static std::string decompressed = util::decompress(std::string(reinterpret_cast<const char*>(compressed), sizeof(compressed))); + return decompressed.c_str(); +}(); +const char* hillshade::fragmentSource = [] () { + static const uint8_t compressed[] = { + 0x78, 0xda, 0x8d, 0x56, 0xdb, 0x6e, 0xdb, 0x38, + 0x10, 0x7d, 0xf7, 0x57, 0x4c, 0x91, 0x87, 0x95, + 0x1b, 0x5b, 0x8a, 0x95, 0x78, 0x9d, 0xa4, 0x9b, + 0x16, 0x8b, 0xa6, 0x05, 0x02, 0x14, 0x6d, 0x90, + 0x16, 0xed, 0xc3, 0xa2, 0x30, 0x68, 0x89, 0x96, + 0x98, 0xa5, 0x44, 0x95, 0xa4, 0x7c, 0xe9, 0x62, + 0xff, 0xbd, 0x33, 0x24, 0x65, 0xcb, 0x4e, 0xb0, + 0xd8, 0xbc, 0x24, 0x21, 0x67, 0xce, 0x5c, 0xce, + 0x99, 0xa1, 0xda, 0x5a, 0x2c, 0x95, 0xae, 0xc0, + 0xb0, 0xaa, 0x91, 0x5c, 0xa7, 0xb7, 0xd0, 0xce, + 0x45, 0xc5, 0x0a, 0xfe, 0x6a, 0xb0, 0x62, 0x7a, + 0x2b, 0xea, 0x02, 0x56, 0x3c, 0x4b, 0x61, 0x35, + 0x6f, 0x94, 0x79, 0x35, 0x18, 0xb4, 0xc1, 0xde, + 0x1d, 0xb6, 0x73, 0xc9, 0xac, 0x66, 0x35, 0x59, + 0x1f, 0x5f, 0x88, 0xa2, 0xb4, 0x07, 0xa7, 0x17, + 0x78, 0x6a, 0x4a, 0x96, 0xab, 0xf5, 0x93, 0xe3, + 0x12, 0x8d, 0x9f, 0x77, 0x60, 0x59, 0xc6, 0x6b, + 0x3c, 0x1e, 0x9c, 0xe4, 0x7c, 0x29, 0x6a, 0x0e, + 0xf7, 0x77, 0x70, 0x1e, 0x4f, 0x2e, 0x26, 0xd3, + 0xab, 0xf4, 0xf7, 0xe9, 0xf9, 0xf4, 0xf2, 0x6a, + 0x76, 0x75, 0x3e, 0x18, 0xac, 0x94, 0xc8, 0xa1, + 0x62, 0xa2, 0x8e, 0x86, 0xf0, 0xcf, 0x00, 0xf0, + 0xc7, 0xf9, 0x37, 0x62, 0xc3, 0x25, 0xdc, 0x80, + 0xe5, 0x1b, 0xdb, 0x6a, 0x9e, 0xde, 0x46, 0xa1, + 0xb8, 0x91, 0xaf, 0x67, 0x88, 0xc0, 0xc1, 0x38, + 0x85, 0x9c, 0x6b, 0xb1, 0x42, 0xe3, 0x28, 0x72, + 0x6e, 0xb1, 0x2e, 0xe0, 0x25, 0xa4, 0xf1, 0xd9, + 0x10, 0xc6, 0x30, 0xc1, 0x5f, 0xc1, 0x36, 0x49, + 0xe0, 0x1b, 0x87, 0x5c, 0xac, 0x44, 0xce, 0xc1, + 0x96, 0x1c, 0x8c, 0x54, 0x0d, 0x87, 0xc5, 0x16, + 0x18, 0x98, 0x8c, 0x49, 0x0e, 0x4b, 0x96, 0x59, + 0xa5, 0x61, 0xc1, 0x0c, 0xcf, 0x41, 0xd5, 0xce, + 0x28, 0x53, 0x46, 0xd4, 0xa0, 0x96, 0xee, 0x1f, + 0x87, 0xff, 0x9b, 0x01, 0xd6, 0x34, 0x5a, 0x6d, + 0x30, 0x21, 0xcb, 0x01, 0x1b, 0x29, 0x6c, 0x9b, + 0xf3, 0x2e, 0x86, 0x55, 0x80, 0xb5, 0xab, 0xb6, + 0xb6, 0x80, 0xfd, 0x80, 0x8a, 0xeb, 0x8c, 0x11, + 0x2a, 0x7a, 0x3c, 0xf2, 0xcc, 0x0a, 0xc4, 0xcd, + 0x85, 0xc1, 0x13, 0xfa, 0x33, 0x06, 0xc3, 0x39, + 0x9c, 0x5c, 0x5c, 0x9e, 0xcd, 0x9c, 0x75, 0xce, + 0x2d, 0x13, 0xd2, 0x38, 0xac, 0xa5, 0x54, 0xcc, + 0xfa, 0xcc, 0xde, 0xfb, 0xc4, 0x6e, 0x28, 0x9b, + 0x48, 0xb3, 0x5c, 0xb0, 0xda, 0x44, 0xd1, 0x9e, + 0xc4, 0xbf, 0xce, 0xbe, 0x63, 0xad, 0xbd, 0xff, + 0x27, 0xdf, 0x87, 0xd8, 0x83, 0x08, 0xab, 0xc7, + 0x73, 0xd7, 0xb1, 0x78, 0x3b, 0x84, 0xd3, 0x23, + 0x13, 0xec, 0xcc, 0xbe, 0x31, 0x4c, 0x1a, 0x05, + 0x55, 0x2b, 0xad, 0x68, 0xe4, 0xf6, 0xa8, 0x3f, + 0x35, 0x30, 0xbd, 0x10, 0xe8, 0xa8, 0xb7, 0xf0, + 0x73, 0x1c, 0xda, 0x84, 0x3d, 0x99, 0xc4, 0xe9, + 0xb4, 0x9f, 0xab, 0x73, 0xb8, 0x01, 0x66, 0x59, + 0x1d, 0xd1, 0x1d, 0xe6, 0x20, 0x79, 0x5d, 0xd8, + 0x32, 0x72, 0x1c, 0x0d, 0x21, 0xe9, 0xd7, 0x13, + 0xc2, 0x7b, 0x5f, 0x66, 0x1a, 0xec, 0x0e, 0x3a, + 0x3b, 0xcb, 0x78, 0x03, 0x2f, 0x6e, 0xe0, 0x0c, + 0xd3, 0x7f, 0xe3, 0xd1, 0xfc, 0xe9, 0x76, 0x04, + 0xe3, 0x70, 0x3f, 0x84, 0x6b, 0x92, 0x54, 0x42, + 0x44, 0x53, 0xa9, 0xc1, 0x00, 0x5e, 0x07, 0x2f, + 0x2a, 0xfd, 0x1a, 0xc6, 0x3d, 0xfe, 0x7d, 0x1c, + 0x51, 0x5b, 0x5e, 0x1b, 0x61, 0xb7, 0x18, 0x2a, + 0x88, 0x3d, 0xde, 0x1c, 0xf4, 0x21, 0xcf, 0x09, + 0x18, 0x69, 0xac, 0xd8, 0xdf, 0x24, 0x14, 0x61, + 0x88, 0xbb, 0x86, 0x6b, 0xf4, 0x41, 0xc6, 0xb3, + 0xd2, 0x35, 0xa7, 0x90, 0x6a, 0xc1, 0x24, 0x38, + 0x00, 0x50, 0x0b, 0xa2, 0x76, 0x04, 0xeb, 0x52, + 0xe0, 0x35, 0x22, 0x18, 0x84, 0x48, 0x52, 0x02, + 0x21, 0x5b, 0x67, 0x44, 0xb2, 0xf9, 0x29, 0xaa, + 0xd6, 0x96, 0x4c, 0x76, 0xe1, 0x90, 0x17, 0xe1, + 0x14, 0xb1, 0x0b, 0x70, 0xa4, 0x9e, 0xb3, 0x9c, + 0x17, 0x48, 0xba, 0xd6, 0xdc, 0x34, 0xaa, 0xce, + 0x69, 0xa8, 0xd1, 0xa2, 0x46, 0xf1, 0x94, 0x09, + 0x21, 0x5b, 0xd5, 0x74, 0xda, 0x5c, 0x09, 0xbe, + 0x6e, 0xf0, 0x02, 0x2b, 0xf4, 0xec, 0xd9, 0x2d, + 0x4a, 0x9a, 0xba, 0xda, 0x45, 0x63, 0x75, 0xee, + 0x6e, 0x94, 0x16, 0x85, 0xa8, 0x31, 0x79, 0x1a, + 0x6a, 0xae, 0x61, 0xcd, 0x0c, 0xac, 0xb5, 0xb0, + 0xd8, 0x98, 0x10, 0x9f, 0x37, 0x16, 0xa2, 0xb1, + 0x90, 0xb2, 0xad, 0xd0, 0x90, 0x32, 0xbc, 0x15, + 0x3a, 0x88, 0x77, 0x0c, 0x57, 0x38, 0x59, 0xe8, + 0x42, 0x50, 0xbb, 0x8a, 0xe2, 0x3e, 0x95, 0xfe, + 0xb0, 0xd7, 0xe0, 0x2d, 0x4a, 0xef, 0xfe, 0xee, + 0x60, 0x0e, 0xfd, 0xc4, 0xed, 0x65, 0xc6, 0x37, + 0x58, 0x20, 0x6e, 0x0c, 0xc1, 0x24, 0xca, 0x6f, + 0x37, 0x82, 0x3b, 0xba, 0x46, 0xd0, 0x1a, 0x2a, + 0x9f, 0x01, 0x3a, 0x66, 0xad, 0x74, 0x59, 0x81, + 0x11, 0x95, 0x90, 0x4c, 0x63, 0xda, 0xbb, 0xf1, + 0x2b, 0x0f, 0xb0, 0x1c, 0x80, 0x6e, 0x54, 0xb0, + 0x5f, 0xb6, 0xb5, 0xaf, 0xe2, 0x49, 0x93, 0xae, + 0x3b, 0x80, 0xd2, 0xda, 0xc6, 0x5c, 0x27, 0x49, + 0x21, 0x6c, 0xd9, 0x2e, 0xe2, 0x4c, 0x55, 0x49, + 0xc5, 0x9a, 0x85, 0xda, 0x84, 0x5f, 0xe3, 0x42, + 0x8e, 0x1f, 0x4d, 0xb2, 0x40, 0xfe, 0xf1, 0xc4, + 0x20, 0x7a, 0x62, 0x74, 0x96, 0x38, 0xa4, 0x31, + 0x21, 0x25, 0x18, 0x1e, 0xf9, 0x32, 0x18, 0x26, + 0x71, 0xbb, 0xcf, 0x51, 0x6c, 0x92, 0x7d, 0x26, + 0x3c, 0x7e, 0x34, 0x27, 0x1f, 0xd2, 0xc9, 0x6c, + 0xfc, 0x21, 0x4d, 0x2f, 0xbb, 0xc0, 0x86, 0xc4, + 0x82, 0xed, 0xa3, 0x9d, 0x8a, 0xac, 0xec, 0x85, + 0xba, 0x62, 0xb2, 0xe5, 0x06, 0x32, 0xcd, 0x69, + 0xdf, 0x54, 0x4a, 0x23, 0x85, 0x0d, 0xfb, 0xd1, + 0x72, 0x34, 0x95, 0x92, 0x48, 0xc4, 0xc6, 0xf4, + 0x09, 0xa0, 0xee, 0x61, 0xf7, 0x27, 0xf1, 0xe5, + 0x6c, 0x8a, 0x7c, 0xed, 0x91, 0x5e, 0xe2, 0xd9, + 0x6c, 0xda, 0x1f, 0xbb, 0x8a, 0x6d, 0xbe, 0x12, + 0x3c, 0xd0, 0xb4, 0xd1, 0xbc, 0x12, 0x4d, 0x47, + 0xdb, 0x27, 0xff, 0x1c, 0xe6, 0x7a, 0x0f, 0xf4, + 0xc2, 0x9b, 0xbf, 0xa1, 0x9d, 0xab, 0xd6, 0x11, + 0x05, 0x1c, 0x79, 0x22, 0xbb, 0xa5, 0x8b, 0x93, + 0xd9, 0xbb, 0xea, 0xc2, 0x74, 0xb7, 0xb4, 0x9d, + 0x76, 0xa1, 0xaf, 0xbd, 0xe7, 0x5e, 0x1e, 0x5f, + 0x48, 0x59, 0xee, 0xfd, 0x40, 0xed, 0x4b, 0x1c, + 0x03, 0x1c, 0xc1, 0x8e, 0x75, 0x94, 0xc5, 0x1a, + 0x99, 0xd9, 0xef, 0x66, 0xde, 0x0d, 0x80, 0xd7, + 0x11, 0x8e, 0x60, 0xa7, 0x2b, 0x52, 0xf7, 0x7f, + 0x03, 0x90, 0xfb, 0x71, 0xfb, 0xed, 0x51, 0x70, + 0x9c, 0x5b, 0x4d, 0x7d, 0xc7, 0x28, 0x59, 0x49, + 0x9b, 0x13, 0x38, 0x96, 0x64, 0x48, 0x41, 0xcf, + 0xc6, 0x42, 0x7b, 0x6f, 0xa0, 0x5a, 0x7b, 0x30, + 0x15, 0x1e, 0xd3, 0xef, 0xf0, 0x5e, 0x5f, 0x0f, + 0x96, 0xf0, 0x6e, 0xff, 0x2e, 0x54, 0x48, 0x31, + 0xb8, 0xd1, 0xec, 0xf6, 0x0b, 0x72, 0xaf, 0x56, + 0x26, 0xf1, 0xed, 0xc7, 0x7a, 0x8e, 0xa4, 0x72, + 0x5c, 0x51, 0x77, 0x2d, 0x30, 0xa9, 0xd7, 0x9e, + 0xb8, 0x9c, 0x96, 0x88, 0xa5, 0x4d, 0xe5, 0xc4, + 0xe9, 0x66, 0x8e, 0x2d, 0x97, 0xb4, 0x81, 0x7d, + 0x63, 0x29, 0x86, 0xd7, 0x5d, 0x87, 0xe6, 0x8b, + 0x7d, 0xa2, 0xca, 0x3f, 0x1c, 0x5e, 0x58, 0x95, + 0xd8, 0xa5, 0x15, 0xd7, 0x88, 0x16, 0x10, 0x9c, + 0x56, 0xe9, 0xbd, 0x31, 0x0d, 0xd3, 0x58, 0x46, + 0xbc, 0x7f, 0xe1, 0x7d, 0x5d, 0x73, 0x6f, 0x77, + 0xd3, 0x3d, 0x55, 0xfe, 0x94, 0xd4, 0xd1, 0x7d, + 0x41, 0xe0, 0x9f, 0xae, 0xcc, 0xa8, 0xaf, 0x62, + 0xdc, 0xf9, 0x23, 0xda, 0xf3, 0xa3, 0xf0, 0xbe, + 0xf7, 0x04, 0xeb, 0x7a, 0x84, 0x4f, 0xd0, 0xc2, + 0x44, 0x95, 0xca, 0xa3, 0x28, 0xbc, 0x2b, 0xa7, + 0xdd, 0x56, 0x22, 0x61, 0xe2, 0x7a, 0x3f, 0xa5, + 0xb4, 0x47, 0x87, 0x5f, 0x09, 0xbb, 0xdc, 0x1c, + 0xc8, 0x2e, 0xb5, 0x4a, 0x6c, 0xa2, 0xee, 0x03, + 0x68, 0xd4, 0xff, 0xe6, 0x19, 0x79, 0x43, 0xca, + 0x16, 0x85, 0x74, 0xc0, 0xe9, 0xff, 0xce, 0xba, + 0x90, 0xf3, 0xf7, 0x9a, 0x15, 0x6f, 0x43, 0xac, + 0x83, 0xae, 0xec, 0x1e, 0xf0, 0x5e, 0x3e, 0x31, + 0xa3, 0x67, 0xbc, 0x77, 0x40, 0x5f, 0x58, 0x62, + 0x89, 0x7b, 0x06, 0x3e, 0x7d, 0x7d, 0xf7, 0x70, + 0xfb, 0xf0, 0xe7, 0xb7, 0xf9, 0xdd, 0xc7, 0xcf, + 0xf7, 0xef, 0xde, 0x7e, 0xf9, 0xf4, 0xf0, 0x5c, + 0x04, 0x2a, 0x30, 0xf2, 0xf1, 0x4f, 0x38, 0xbe, + 0x28, 0xcb, 0xc1, 0xbf, 0x83, 0x5f, 0x25, 0x18, + 0x54, 0xec + }; + static std::string decompressed = util::decompress(std::string(reinterpret_cast<const char*>(compressed), sizeof(compressed))); + return decompressed.c_str(); +}(); } // namespace shaders } // namespace mbgl |