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[cocos2dx] Fix UV precision in two-color tint shader for Android GPUs.

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Use highp for texture coordinate varyings and mediump default precision
in the fragment shader. On Android GPUs, mediump/lowp don't have enough
precision for large atlas textures, causing visible jitter in sequence
animations.
This commit is contained in:
Mario Zechner 2026-02-16 09:52:48 +01:00
parent ad8f19632a
commit ea452616b4
1 changed files with 3 additions and 3 deletions
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6
spine-cocos2dx/spine-cocos2dx/src/spine/v4/SkeletonTwoColorBatch.cpp
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@ -61,7 +61,7 @@ namespace {
\n #ifdef GL_ES\n \n #ifdef GL_ES\n
varying lowp vec4 v_light; varying lowp vec4 v_light;
varying lowp vec4 v_dark; varying lowp vec4 v_dark;
varying mediump vec2 v_texCoord; varying highp vec2 v_texCoord;
\n #else \n \n #else \n
varying vec4 v_light; varying vec4 v_light;
varying vec4 v_dark; varying vec4 v_dark;
@ -78,12 +78,12 @@ namespace {
const char *TWO_COLOR_TINT_FRAGMENT_SHADER = STRINGIFY( const char *TWO_COLOR_TINT_FRAGMENT_SHADER = STRINGIFY(
\n #ifdef GL_ES\n \n #ifdef GL_ES\n
precision lowp float; precision mediump float;
\n #endif \n \n #endif \n
uniform sampler2D u_texture; uniform sampler2D u_texture;
varying vec4 v_light; varying vec4 v_light;
varying vec4 v_dark; varying vec4 v_dark;
varying vec2 v_texCoord; varying highp vec2 v_texCoord;
void main() { void main() {
vec4 texColor = texture2D(u_texture, v_texCoord); vec4 texColor = texture2D(u_texture, v_texCoord);