Eevee: Initial implementation of exponential shadowmaps

Also fixes the rendering of depth.

1 files changed, 9 insertions, 2 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/shadow_frag.glsl b/source/blender/draw/engines/eevee/shaders/shadow_frag.glsl
index 0b7356d812b..7a8b06e3430 100644
--- a/source/blender/draw/engines/eevee/shaders/shadow_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/shadow_frag.glsl
@@ -1,8 +1,15 @@
 
-in float linearDistance;
+layout(std140) uniform shadow_render_block {
+	mat4 ShadowMatrix[6];
+	vec4 lampPosition;
+	int layer;
+};
+
+in vec3 worldPosition;
 
 out vec4 FragColor;
 
 void main() {
-	FragColor = vec4(linearDistance, 0.0, 0.0, 1.0);
+	float dist = distance(lampPosition.xyz, worldPosition.xyz);
+	FragColor = vec4(exp(5.0 * dist), 0.0, 0.0, 1.0);
 }