diff options
Diffstat (limited to 'drivers/gles2/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index f90c6a6651..e638e94402 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -96,6 +96,10 @@ uniform float light_normal_bias; // varyings // +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) +varying highp vec4 position_interp; +#endif + varying highp vec3 vertex_interp; varying vec3 normal_interp; @@ -355,7 +359,7 @@ void main() { uv2_interp = uv2_attrib; #endif -#ifdef OVERRIDE_POSITION +#if defined(OVERRIDE_POSITION) highp vec4 position; #endif @@ -647,11 +651,16 @@ VERTEX_SHADER_CODE #endif //use vertex lighting -#ifdef OVERRIDE_POSITION +#if defined(OVERRIDE_POSITION) gl_Position = position; #else gl_Position = projection_matrix * vec4(vertex_interp, 1.0); #endif + +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) + position_interp = gl_Position; +#endif + } /* clang-format off */ @@ -975,6 +984,10 @@ uniform vec4 light_clamp; // varyings // +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) +varying highp vec4 position_interp; +#endif + varying highp vec3 vertex_interp; varying vec3 normal_interp; @@ -1335,8 +1348,21 @@ LIGHT_SHADER_CODE #ifdef USE_SHADOW -#define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, texture2D(p_shadow, p_pos).r) -#define SAMPLE_SHADOW_TEXEL_PROJ(p_shadow, p_pos) step(p_pos.z, texture2DProj(p_shadow, p_pos).r) +#ifdef USE_RGBA_SHADOWS + +#define SHADOW_DEPTH(m_val) dot(m_val, vec4(1.0 / (256.0 * 256.0 * 256.0), 1.0 / (256.0 * 256.0), 1.0 / 256.0, 1.0)) + +#else + +#define SHADOW_DEPTH(m_val) (m_val).r + +#endif + + +#define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, SHADOW_DEPTH(texture2D(p_shadow, p_pos))) +#define SAMPLE_SHADOW_TEXEL_PROJ(p_shadow, p_pos) step(p_pos.z, SHADOW_DEPTH(texture2DProj(p_shadow, p_pos))) + + float sample_shadow(highp sampler2D shadow, highp vec4 spos) { @@ -2105,5 +2131,15 @@ FRAGMENT_SHADER_CODE #endif // defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) -#endif // not RENDER_DEPTH +#else // not RENDER_DEPTH +//depth render +#ifdef USE_RGBA_SHADOWS + + highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0; // bias + highp vec4 comp = fract(depth * vec4(256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0)); + comp -= comp.xxyz * vec4(0.0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0); + gl_FragColor = comp; + +#endif +#endif } |