Specular

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1 and failing to set ALPHA_FROM_MATERIAL_SPECULAR will pass through vertex specular RGB instead of performing the light calculation.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is enabled but with a directional light pointing at {1, 0, 1}.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper row has SET_SPECULAR_ENABLE = false. The lower row has it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Because lighting is enabled, the diffuse alpha is entirely dictated by SET_MATERIAL_ALPHA, and RGB is entirely set by the lighting calculations.

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1 and failing to set ALPHA_FROM_MATERIAL_SPECULAR will pass through vertex specular RGB instead of performing the light calculation.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is enabled but with a directional light pointing at {1, 0, 1}.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper row has SET_SPECULAR_ENABLE = false. The lower row has it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Because lighting is enabled, the diffuse alpha is entirely dictated by SET_MATERIAL_ALPHA, and RGB is entirely set by the lighting calculations.

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is disabled.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper two rows have SET_SPECULAR_ENABLE = false. The lower rows have it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is disabled.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper row has SET_SPECULAR_ENABLE = false. The lower row has it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1 and failing to set ALPHA_FROM_MATERIAL_SPECULAR will pass through vertex specular RGB instead of performing the light calculation.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is enabled but no light exists.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper row has SET_SPECULAR_ENABLE = false. The lower row has it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Because lighting is enabled, the diffuse alpha is entirely dictated by SET_MATERIAL_ALPHA, and RGB is entirely set by the lighting calculations.

Demonstrates that SET_SPECULAR_ENABLE = false forces specular values to {0, 0, 0, 1}. Also demonstrates that failing to set SEPARATE_SPECULAR will cause the specular alpha to be set to 1 and failing to set ALPHA_FROM_MATERIAL_SPECULAR will pass through vertex specular RGB instead of performing the light calculation.

Renders two groups of two rows of 4 quads each with the fixed function pipeline. The first row is the specular component, the second is the diffuse. Lighting is enabled but no light exists.

Each quad has specular and diffuse colors of: UL = {1.f, 0.f, 0.f, 0.15f}, {0.f, 0.f, 0.5f, 1.f} UR = {1.f, 0.f, 0.f, 0.75f}, {0.f, 0.f, 0.75f, 1.f} LR = {0.f, 1.f, 0.f, 1.f}, {0.f, 0.f, 1.f, 1.f} LL = {0.f, 1.f, 0.f, 0.2f}, {0.f, 0.f, 0.25f, 1.f}

The upper row has SET_SPECULAR_ENABLE = false. The lower row has it true. The first column has SET_LIGHT_CONTROL = SEPARATE_SPECULAR + ALPHA_FROM_MATERIAL_SPECULAR The second has SET_LIGHT_CONTROL = SEPARATE_SPECULAR The third has SET_LIGHT_CONTROL = ALPHA_FROM_MATERIAL_SPECULAR The fourth has SET_LIGHT_CONTROL = 0

Because lighting is enabled, the diffuse alpha is entirely dictated by SET_MATERIAL_ALPHA, and RGB is entirely set by the lighting calculations.

Renders a number of meshes with a directional light and a point light, shading the specular channel only. LIGHT_CONTROL is set to SEPARATE_SPECULAR and SET_SPECULAR_PARAMS is set to the values displayed in the image.