I have 3D data represents alpha values, how can I load this to 3D texture with only alpa values?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have 3D data represents alpha values, how can I load this to 3D texture with only alpa values?
Use a single channel texture format. For <=OpenGL-2.1 this would be GL_ALPHA. Beginning with OpenGL-3 you’d use GL_R and a shader passing the r-component to the output fragment alpha channel