mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2024-12-25 03:08:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

graphics: Stop comparing matrices in GLSL, which doesn't work on iPhone5s

Browse Source
This commit is contained in:
Hajime Hoshi 2016-06-23 00:25:31 +09:00
parent bae27e19d7
commit 24bb5b5ca8
1 changed files with 7 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
internal/graphics/shader.go
View File

@ -58,15 +58,13 @@ varying highp vec2 vertex_out_tex_coord;
void main(void) { void main(void) {
lowp vec4 color = texture2D(texture, vertex_out_tex_coord); lowp vec4 color = texture2D(texture, vertex_out_tex_coord);
if (color_matrix != mat4(1.0) || color_matrix_translation != vec4(0.0)) { // Un-premultiply alpha
// Un-premultiply alpha color.rgb /= color.a;
color.rgb /= color.a; // Apply the color matrix
// Apply the color matrix color = (color_matrix * color) + color_matrix_translation;
color = (color_matrix * color) + color_matrix_translation; color = clamp(color, 0.0, 1.0);
color = clamp(color, 0.0, 1.0); // Premultiply alpha
// Premultiply alpha color.rgb *= color.a;
color.rgb *= color.a;
}
gl_FragColor = color; gl_FragColor = color;
} }