C++ (Cpp) opengl_state::Blend Beispiele

Beispiel #1

Datei: gropenglstate.cpp Projekt: scp-fs2open/fs2open.github.com

void opengl_state::SetAlphaBlendMode(gr_alpha_blend ab)
{
	switch (ab) {
		case ALPHA_BLEND_ALPHA_BLEND_ALPHA:
			GL_state.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
			break;

		case ALPHA_BLEND_NONE:
			GL_state.BlendFunc(GL_ONE, GL_ZERO);
			break;

		case ALPHA_BLEND_ADDITIVE:
			GL_state.BlendFunc(GL_ONE, GL_ONE);
			break;

		case ALPHA_BLEND_ALPHA_ADDITIVE:
			GL_state.BlendFunc(GL_SRC_ALPHA, GL_ONE);
			break;

		case ALPHA_BLEND_ALPHA_BLEND_SRC_COLOR:
			GL_state.BlendFunc(/*GL_SRC_COLOR*/GL_SRC_ALPHA, GL_ONE_MINUS_SRC_COLOR);
			break;

		case ALPHA_BLEND_PREMULTIPLIED:
			GL_state.BlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
			break;

		default:
			break;
	}

	GL_state.Blend( (ab == ALPHA_BLEND_NONE) ? GL_FALSE : GL_TRUE );
}

Beispiel #2

Datei: gropenglstate.cpp Projekt: Esarai/fs2open.github.com

void opengl_state::SetAlphaBlendMode(gr_alpha_blend ab)
{
	if (ab == Current_alpha_blend_mode) {
		return;
	}

	switch (ab) {
		case ALPHA_BLEND_ALPHA_BLEND_ALPHA:
			GL_state.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
			break;

		case ALPHA_BLEND_NONE:
			GL_state.BlendFunc(GL_ONE, GL_ZERO);
			break;

		case ALPHA_BLEND_ADDITIVE:
			GL_state.BlendFunc(GL_ONE, GL_ONE);
			break;

		case ALPHA_BLEND_ALPHA_ADDITIVE:
			GL_state.BlendFunc(GL_SRC_ALPHA, GL_ONE);
			break;

		case ALPHA_BLEND_ALPHA_BLEND_SRC_COLOR:
			GL_state.BlendFunc(/*GL_SRC_COLOR*/GL_SRC_ALPHA, GL_ONE_MINUS_SRC_COLOR);
			break;

		default:
			break;
	}

	GL_state.Blend( (ab == ALPHA_BLEND_NONE) ? GL_FALSE : GL_TRUE );

	Current_alpha_blend_mode = ab;
}